Table 2. Average translucency parameter(TP) values and standard deviations for each specimen.

Zirconia				Lithium disilicate
Thickness (mm)	Shade (3Y)	Shine T (4Y)	High Shine (5.5Y)	Rosetta SM (LS)
0.8	13.32 ± 0.32 a	14.12 ± 0.18 b	16.47 ± 0.39 c	19.17 ± 0.29 d
1.5	10.55 ± 0.14 a	11.89 ± 0.26 b	14.13 ± 0.12 c	14.20 ± 0.32 c

^*Letters a,b,c,d mean statistically significant differences between groups (P < .05 ).

^**3Y (3 mol% yttria tetragonal zirconia polycrystals), 4Y (4 mol% yttria partially stabilized zirconia), 5.5Y (5.5 mol% yttria partially stabilized zirconia), LS (lithium disilicate)